Causes and solutions of zucchini not expanding in greenhouse

When planting zucchini in greenhouse, it is easy to appear the phenomenon that melons are not inflated after sitting on melons, which is a headache for farmers. Melons are not inflated, even if there are more melons, no matter how many melons. So why doesn't the greenhouse zucchini expand the melon? How to solve it? Come and have a look with the editor.

1. The plant is prosperous.

Generally, the zucchini plants that do not expand melon generally have the phenomenon of prosperous growth, and the nutrition absorbed by the plant is certain. If the vegetative growth is too prosperous, it is bound to affect the reproductive growth, resulting in the zucchini not expanding melon. Therefore, in the zucchini seedling stage, it is necessary to do a good job in prosperity control, in addition to the use of prosperity control agents, but also from the fertilizer, water, temperature and other aspects of adjustment. Zucchini requires more strict eyeballs, generally need to maintain 18-22 degrees attention during the day, 13-15 degrees attention at night, the temperature is too high, especially when the night temperature is too high, it is easy to grow, so the temperature must be well controlled. In addition, on the basis of sufficient base fertilizer, do not apply too much nitrogen fertilizer after slowing down seedlings, because nitrogen fertilizer can easily lead to overgrowth of plants, and high potassium fertilizer can be applied properly during the melon expansion period.

2. High concentration of dipping anther

The concentration of dipping anther should change with the change of temperature, low at high temperature and high at low temperature. if the zucchini does not expand melon because of the high anther concentration, it is necessary to increase the amount of water. at the same time, gibberellin or cytokinin mixed with brassinolide was sprayed to alleviate its normal growth and development.

3. Low temperature and low light

When zucchini is exposed to low temperature, not only growth and development is slow, but also nutrient synthesis and transportation are hindered, the synthesis of nutrient products by photosynthesis in daytime is insufficient, nutrition supply is insufficient, and low temperature causes cells to stop elongation, resulting in unexpanded melon or melons. Therefore, it needs to be solved by heat preservation and light enhancement. In sunny days, it is necessary to pull the shed early and cover it at night to prolong the light time. On cloudy and rainy days, when the temperature permits, we should properly open the grass grass to penetrate the light, and wipe the greenhouse film in time to increase the light time and amount of light of vegetables.

The above is the greenhouse zucchini non-swelling reasons and solutions, hope to help you, want to know more related knowledge, please pay attention to us.